Pricing is off by 1

Hi. I wrote a different Apacesolr price module (not integrated with Ubercart) based on this code. I thought I'd report a small bug in this module as well since I just fixed it for my own site.

Let's say you set apachesolr_ubercart_division to 100, so you want to split all of your prices such as $0-$100, $100-$200, etc. The challenge is that when you get to apachesolr_ubercart_price_facet_block and the $to_price calculation, it just splits it all by 100. So what you wind up with are items that are priced at $100 falling into BOTH the $0-$100 facet, and the $100-$200 facet. You end up with a confusing user experience since they faceted on $0-$100, but they also see the other facet.

Here's my fix. In apachesolr_ubercart_price_facet_block(), inside the foreach change it as follows:

      $to_price = (($price_range * $division) + $division) - 0.001;
      $facet_text = t('from @price_from to @price_to',array('@price_from'=>$from_price,'@price_to'=>round($to_price)));

Basically, we subtract .001 so the value is less than 1 penny smaller, so all items up to $99.99 would fit into the first bucket. I also use the round() function to round that back up when displaying it to the user so they see $0-$99.

I'm not sure if that makes sense or not, and I have not tested with this module because I'm not using it.